Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Y. C. Ratnakaram"'
Publikováno v:
Luminescence : the journal of biological and chemical luminescence. 33(3)
In the present study, the effect of bismuth oxide (Bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::dff2c2c0b7bcfe36f35f53a2419d9a63
https://pubmed.ncbi.nlm.nih.gov/29363251
https://pubmed.ncbi.nlm.nih.gov/29363251
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 181
Influence of addition of bismuth oxide (Bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c3b75044bee13807f91156b44a1cc876
https://pubmed.ncbi.nlm.nih.gov/28380409
https://pubmed.ncbi.nlm.nih.gov/28380409
Publikováno v:
Luminescence : the journal of biological and chemical luminescence. 32(3)
Nd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::feb10f3530f963e2481cba59dc3383d6
https://pubmed.ncbi.nlm.nih.gov/27546167
https://pubmed.ncbi.nlm.nih.gov/27546167
Autor:
G. N. Hemanthkumar, R.P.S. Chakradhar, J. Lakshmana Rao, G. Parthasarathy, Y. C. Ratnakaram, I. Omkaram
Publikováno v:
Physics and Chemistry of Minerals. 36:447-453
A natural sample of clinochlore from the Longitudinal Valley area of northeastern Taiwan has been characterized by using the powder X-ray diffraction (XRD), differential thermal analysis and electron paramagnetic resonance (EPR) spectroscopic techniq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8492d6e0c20cdc2718dbf1658154048
https://doi.org/10.1007/s00269-009-0291-5
https://doi.org/10.1007/s00269-009-0291-5
Autor:
S. Babu, Y. C. Ratnakaram
Publikováno v:
AIP Conference Proceedings.
Optical properties of Ho3+ doped different fluorophosphate (FP) glasses have been synthesized and discussed. Thermal properties have been studied through differential scanning calorimetry (DSC).The Judd-Ofelt (J-O) intensity parameters Ωλ (λ= 2, 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4e5abf5e18b9bd2bd93d3fbca4f3078
https://doi.org/10.1063/1.4947833
https://doi.org/10.1063/1.4947833
Publikováno v:
AIP Conference Proceedings.
Optical properties of different concentration (0.2, 0.4, 0.6, 0.8 and 1.0 mol %) of Sm3+ doped chloro-fluoro-borate glasses have been synthesized and discussed. Structural characterizations have been studied through XRD analysis. Spectroscopic analys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a78cf37655da700d952b8967f35f905f
https://doi.org/10.1063/1.4947835
https://doi.org/10.1063/1.4947835
Publikováno v:
AIP Conference Proceedings.
Pr3+ (1.0 mol%) doped different modifier oxide based six lithium-fluoro-borate glasses with chemical composition of 49Li2B4O7-20BaF2-10NaF-20MO (where M= Mg, Ca, Cd and Pb), 49Li2B4O7-20BaF2-10NaF-10MgO-10CaO and 49Li2B4O7-20BaF2-10NaF-10CdO-10PbO we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df2ae05031957bd11c78500ae6b455e0
https://doi.org/10.1063/1.4917869
https://doi.org/10.1063/1.4917869
Autor:
A. Viswanadha Reddy, Y. C. Ratnakaram
Publikováno v:
Bulletin of Materials Science. 24:539-545
Optical properties of chlorophosphate glasses of the type 50P2O5−30Na2HPO4−20RCl (R = potassium and lead) activated by 0.1 and 0.5 mol% of Pr3+ and Nd3+ have been investigated. Optical band gaps (E opt)have been reported for 0.1 and 0.5 mol% conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9950534a3933afab319d4756045f5927
https://doi.org/10.1007/bf02706728
https://doi.org/10.1007/bf02706728
Publikováno v:
Luminescence : the journal of biological and chemical luminescence. 29(7)
Strontium-aluminium-bismuth-borate glasses (SAlBiB) doped with different concentrations of Ho(3+) were prepared using conventional melt quenching technique and their structural and optical properties investigated. X-ray diffraction and scanning elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4eac201e0a5fa43a68087b2e21efbb45
https://pubmed.ncbi.nlm.nih.gov/24519914
https://pubmed.ncbi.nlm.nih.gov/24519914
Publikováno v:
Bulletin of Materials Science. 19:581-586
Using the optical absorption spectra and the Judd-Ofelt theory, intensity parameters (Ωλ) are calculated. Radiative lifetimes (T R), branching ratios (β) and integrated absorption cross sections (Σ) are reported for certain excited levels of Nd3+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e8eb278966b109a9c7429bd88bbb490
https://doi.org/10.1007/bf02744831
https://doi.org/10.1007/bf02744831